From: "H. Peter Anvin" <hpa@linux.intel.com>
To: Grant Likely <grant.likely@secretlab.ca>
Cc: devicetree-discuss@lists.ozlabs.org, x86@kernel.org,
linux-kernel@vger.kernel.org, sodaville@linutronix.de,
Rob Landley <rob@landley.net>,
Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Subject: Re: [sodaville] [PATCH 02/11] x86: Add device tree support
Date: Mon, 03 Jan 2011 10:10:56 -0800 [thread overview]
Message-ID: <4D221130.1020405@linux.intel.com> (raw)
In-Reply-To: <4D22103C.2080705@linux.intel.com>
On 01/03/2011 10:06 AM, H. Peter Anvin wrote:
>
> The problem with that kind of boot wrapper is that they are
> per-architecture, increasing the differences between architectures
> needlessly, and they are often implemented very poorly.
>
> As such, it's nice to have an ultimate fallback that doesn't depend on
> anything outside ours -- the kernel community's -- control.
>
In the case of x86, it's not just per architecture but actually per
platform interface, which is what aggravates the situation additionally.
Unfortunately a lot of embedded x86 vendors seem extremely busy
recreating all the mistakes embedded developers on other platforms have
ever made, because "it's what they know"...
-hpa
WARNING: multiple messages have this Message-ID (diff)
From: "H. Peter Anvin" <hpa-VuQAYsv1563Yd54FQh9/CA@public.gmane.org>
To: Grant Likely <grant.likely-s3s/WqlpOiPyB63q8FvJNQ@public.gmane.org>
Cc: devicetree-discuss-uLR06cmDAlY/bJ5BZ2RsiQ@public.gmane.org,
x86-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org,
linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
sodaville-hfZtesqFncYOwBW4kG4KsQ@public.gmane.org,
Sebastian Andrzej Siewior
<bigeasy-hfZtesqFncYOwBW4kG4KsQ@public.gmane.org>
Subject: Re: [sodaville] [PATCH 02/11] x86: Add device tree support
Date: Mon, 03 Jan 2011 10:10:56 -0800 [thread overview]
Message-ID: <4D221130.1020405@linux.intel.com> (raw)
In-Reply-To: <4D22103C.2080705-VuQAYsv1563Yd54FQh9/CA@public.gmane.org>
On 01/03/2011 10:06 AM, H. Peter Anvin wrote:
>
> The problem with that kind of boot wrapper is that they are
> per-architecture, increasing the differences between architectures
> needlessly, and they are often implemented very poorly.
>
> As such, it's nice to have an ultimate fallback that doesn't depend on
> anything outside ours -- the kernel community's -- control.
>
In the case of x86, it's not just per architecture but actually per
platform interface, which is what aggravates the situation additionally.
Unfortunately a lot of embedded x86 vendors seem extremely busy
recreating all the mistakes embedded developers on other platforms have
ever made, because "it's what they know"...
-hpa
next prev parent reply other threads:[~2011-01-03 18:10 UTC|newest]
Thread overview: 111+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-11-25 17:39 Add device tree support for x86 Sebastian Andrzej Siewior
2010-11-25 17:39 ` [PATCH 01/11] x86/kernel: remove conditional early remap in parse_e820_ext Sebastian Andrzej Siewior
2010-12-08 8:38 ` [sodaville] " Sebastian Andrzej Siewior
2010-12-08 14:15 ` Thomas Gleixner
2010-12-15 23:28 ` H. Peter Anvin
2010-12-16 9:55 ` Sebastian Andrzej Siewior
2010-11-25 17:39 ` [PATCH 02/11] x86: Add device tree support Sebastian Andrzej Siewior
2010-11-25 17:39 ` Sebastian Andrzej Siewior
2010-11-25 22:53 ` Sam Ravnborg
2010-11-25 22:53 ` Sam Ravnborg
2010-11-26 9:06 ` Sebastian Andrzej Siewior
2010-11-26 9:06 ` Sebastian Andrzej Siewior
2010-11-26 21:42 ` Benjamin Herrenschmidt
2010-11-26 21:42 ` Benjamin Herrenschmidt
2010-11-28 13:49 ` Sebastian Andrzej Siewior
2010-11-28 13:49 ` Sebastian Andrzej Siewior
2010-11-28 22:28 ` Benjamin Herrenschmidt
2010-11-28 22:28 ` Benjamin Herrenschmidt
2010-12-30 8:26 ` Grant Likely
2010-12-30 8:26 ` Grant Likely
2010-12-30 8:45 ` Rob Landley
2010-12-30 20:58 ` Grant Likely
2010-12-30 20:58 ` Grant Likely
2011-01-03 16:05 ` [sodaville] " H. Peter Anvin
2011-01-03 16:19 ` H. Peter Anvin
2011-01-03 17:52 ` Grant Likely
2011-01-03 17:52 ` Grant Likely
2011-01-03 18:06 ` H. Peter Anvin
2011-01-03 18:10 ` H. Peter Anvin [this message]
2011-01-03 18:10 ` H. Peter Anvin
2010-12-30 20:57 ` Grant Likely
2010-12-30 20:57 ` Grant Likely
2010-12-31 0:51 ` [sodaville] " H. Peter Anvin
2010-12-31 0:51 ` H. Peter Anvin
2010-11-25 17:39 ` [PATCH 03/11] x86/dtb: Add a device tree for CE4100 Sebastian Andrzej Siewior
2010-11-25 17:39 ` Sebastian Andrzej Siewior
2010-11-26 21:57 ` Benjamin Herrenschmidt
2010-11-26 21:57 ` Benjamin Herrenschmidt
2010-11-28 16:04 ` Sebastian Andrzej Siewior
2010-11-28 16:04 ` Sebastian Andrzej Siewior
2010-11-28 22:53 ` Benjamin Herrenschmidt
2010-11-28 22:53 ` Benjamin Herrenschmidt
2010-11-29 1:34 ` Mitch Bradley
2010-11-29 18:26 ` [sodaville] " H. Peter Anvin
2010-11-29 20:03 ` Benjamin Herrenschmidt
2010-11-29 19:44 ` Sebastian Andrzej Siewior
2010-11-29 19:44 ` Sebastian Andrzej Siewior
2010-12-02 0:40 ` David Gibson
2010-12-02 0:40 ` David Gibson
2010-11-29 19:07 ` Scott Wood
2010-11-29 19:07 ` Scott Wood
2010-11-29 20:05 ` Benjamin Herrenschmidt
2010-11-29 20:32 ` Mitch Bradley
2010-11-29 20:44 ` Benjamin Herrenschmidt
2010-11-29 20:44 ` Benjamin Herrenschmidt
2010-11-29 21:32 ` Mitch Bradley
2010-11-29 21:32 ` Mitch Bradley
2010-11-29 23:47 ` Alan Cox
2010-11-30 2:50 ` Benjamin Herrenschmidt
2010-11-30 2:50 ` Benjamin Herrenschmidt
2010-11-30 11:20 ` Sebastian Andrzej Siewior
2010-11-30 11:20 ` Sebastian Andrzej Siewior
2010-11-29 23:42 ` Alan Cox
2010-11-30 21:18 ` [sodaville] " H. Peter Anvin
2010-11-30 11:51 ` Sebastian Andrzej Siewior
2010-11-30 11:51 ` Sebastian Andrzej Siewior
2010-11-30 20:31 ` Benjamin Herrenschmidt
2010-11-30 20:31 ` Benjamin Herrenschmidt
2010-11-29 23:58 ` David Gibson
2010-11-29 23:58 ` David Gibson
2010-11-29 19:36 ` [sodaville] " Sebastian Andrzej Siewior
2010-11-29 20:14 ` Benjamin Herrenschmidt
2010-11-29 2:22 ` David Gibson
2010-11-29 2:22 ` David Gibson
2010-11-25 17:39 ` [PATCH 04/11] x86/dtb: add irq host abstraction Sebastian Andrzej Siewior
2010-11-25 17:39 ` Sebastian Andrzej Siewior
2010-11-25 19:30 ` Jon Loeliger
2010-11-26 14:19 ` Sebastian Andrzej Siewior
2010-11-26 14:19 ` Sebastian Andrzej Siewior
2010-11-26 21:36 ` Benjamin Herrenschmidt
2010-11-26 21:36 ` Benjamin Herrenschmidt
2010-12-01 10:31 ` [sodaville] " Sebastian Andrzej Siewior
2010-12-01 10:31 ` Sebastian Andrzej Siewior
2010-11-27 3:11 ` Jon Loeliger
2010-11-27 3:11 ` Jon Loeliger
2010-11-25 17:39 ` [PATCH 05/11] x86/dtb: add early parsing of APIC and IO APIC Sebastian Andrzej Siewior
2010-11-25 17:39 ` Sebastian Andrzej Siewior
2010-11-25 17:39 ` [PATCH 06/11] x86/dtb: add support hpet Sebastian Andrzej Siewior
2010-11-25 17:39 ` Sebastian Andrzej Siewior
2010-11-25 17:39 ` [PATCH 07/11] x86/dtb: add support for PCI devices backed by dtb nodes Sebastian Andrzej Siewior
2010-11-25 17:39 ` Sebastian Andrzej Siewior
2010-11-27 22:33 ` Benjamin Herrenschmidt
2010-11-27 22:33 ` Benjamin Herrenschmidt
2010-11-28 14:04 ` Sebastian Andrzej Siewior
2010-11-28 14:04 ` Sebastian Andrzej Siewior
2010-11-28 22:32 ` Benjamin Herrenschmidt
2010-11-28 22:32 ` Benjamin Herrenschmidt
2010-12-02 16:17 ` Sebastian Andrzej Siewior
2010-12-02 16:17 ` Sebastian Andrzej Siewior
2010-11-25 17:39 ` [PATCH 08/11] x86/dtb: Add generic bus probe Sebastian Andrzej Siewior
2010-11-25 17:39 ` Sebastian Andrzej Siewior
2010-11-25 17:39 ` [PATCH 09/11] x86/ioapic: Add OF bindings for IO-APIC Sebastian Andrzej Siewior
2010-11-25 17:39 ` Sebastian Andrzej Siewior
2010-11-25 17:40 ` [PATCH 10/11] x86/io_apic: add simply id set Sebastian Andrzej Siewior
2010-11-25 21:04 ` Yinghai Lu
2010-11-26 11:03 ` Sebastian Andrzej Siewior
2010-11-26 16:50 ` [PATCH] x86/io_apic: split setup_ioapic_ids_from_mpc() into a non-checkign version Sebastian Andrzej Siewior
2010-12-06 13:33 ` [tip:x86/apic] x86: io_apic: Split setup_ioapic_ids_from_mpc() tip-bot for Sebastian Andrzej Siewior
2010-12-07 8:59 ` [PATCH -v2] x86, ioapic: Don't write io_apic ID if it is not changed Yinghai Lu
2010-12-09 20:56 ` [tip:x86/apic-cleanups] x86, ioapic: Avoid writing io_apic id if already correct tip-bot for Yinghai Lu
2010-11-25 17:40 ` [PATCH 11/11] x86/ce4100: use OF for ioapic Sebastian Andrzej Siewior
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